Cape Cod Temperatures By Month: A Monthly Climate Guide With Averages And Conditions [Updated On: September 2025]

Cape Cod’s temperatures change each month. The warm season runs from June to September, with average highs over 70°F. The cold season averages between 32°F and 39°F. January averages 39°F (high) and 24°F (low). July typically sees 78°F (high) and 63°F (low). Monthly data includes average precipitation and humidity levels.

May signals the approach of summer, with average temperatures climbing into the 60s. June typically sees temperatures in the low 70s, inviting outdoor activities. July and August represent peak summer, where daily highs commonly reach the 80s. These warm months attract tourists eager to enjoy Cape Cod’s beaches and festivals.

As autumn arrives in September and October, temperatures gently decline. September can still feel summer-like, while October ushers in crisp air and stunning fall foliage. November and December bring colder weather back, often with the first signs of winter.

Understanding Cape Cod temperatures by month can aid in planning visits or activities. Next, we will explore how these temperature fluctuations influence local events and tourism, highlighting seasonal attractions and festivals.

Table of Contents

What Are the Average Temperatures in Cape Cod by Month?

The average temperatures in Cape Cod by month range from about 28°F in January to 76°F in July.

January: Average temperature around 28°F
February: Average temperature around 30°F
March: Average temperature around 38°F
April: Average temperature around 48°F
May: Average temperature around 58°F
June: Average temperature around 68°F
July: Average temperature around 76°F
August: Average temperature around 74°F
September: Average temperature around 66°F
October: Average temperature around 55°F
November: Average temperature around 44°F
December: Average temperature around 34°F

The temperature variations throughout the year highlight not just seasonal changes but also the differing experiences residents and visitors might have while enjoying Cape Cod’s natural beauty.

January Temperatures:
January temperatures in Cape Cod average around 28°F. The cold can bring snow and ice, affecting travel and outdoor plans. It’s a time for winter sports and cozy indoor activities.
February Temperatures:
February sees an increase to around 30°F. Snowstorms can still occur, and people often engage in winter sports or visit indoor attractions like art galleries and museums.
March Temperatures:
March averages around 38°F. Spring begins to arrive, with thawing landscapes. Residents can enjoy outdoor activities such as hiking, albeit still bundled against the cold.
April Temperatures:
April temperatures average around 48°F. Spring blooms begin to appear. People start to spend more time outdoors, enjoying parks and coastal walks.
May Temperatures:
May’s average of 58°F indicates the approach of summer. Visitors frequent beaches and outdoor festivals. It’s a popular time for families to visit.
June Temperatures:
June averages around 68°F. The beach season typically begins. Visitors enjoy warm days and attend events like the Cape Cod Lavender Farm festival.
July Temperatures:
July sees peak summer temperatures at about 76°F. Beaches are crowded, and water activities like swimming and boating are popular.
August Temperatures:
August averages around 74°F. It remains warm, and summer events are in full swing. Many locals and tourists enjoy the warm evenings.
September Temperatures:
September averages around 66°F. The summer tourism crowds lessen, but warm weather lingers. Fall events, such as harvest festivals, begin.
October Temperatures:
October reaches around 55°F. The autumn colors attract visitors for leaf-peeping. Cooler temperatures mark the transition toward winter.
November Temperatures:
November averages about 44°F. The region prepares for winter, with fewer tourists. It’s a time for reflection and quiet.
December Temperatures:
December has an average of 34°F. As snow becomes more common, holiday events fill the calendar, adding cheer to the cold weather.

Understanding Cape Cod’s monthly temperature variations can help visitors plan their trips effectively. Whether enjoying winter sports or summer beach days, the area’s charm is present year-round.

How Do Temperatures in Cape Cod Compare Month-to-Month?

The following table displays the average monthly temperatures in Cape Cod throughout the year:

Month	Average Temperature (°F)	Temperature Range (°F)
January	30	20 – 40
February	32	22 – 42
March	39	28 – 50
April	50	38 – 62
May	60	48 – 72
June	70	58 – 82
July	75	63 – 87
August	73	61 – 85
September	66	54 – 78
October	55	43 – 67
November	45	33 – 57
December	35	25 – 45

What is the Average High Temperature in Cape Cod Each Month?

The average high temperature in Cape Cod varies throughout the year. January has an average high of 37°F, while July experiences a peak of 79°F. These temperatures reflect the typical climate patterns experienced in this coastal region of Massachusetts.

The National Oceanic and Atmospheric Administration (NOAA) provides consistent and reliable climate data, detailing the average high temperatures for Cape Cod monthly. According to their data, the averages help residents and visitors understand seasonal variations.

The climate in Cape Cod is characterized by a humid continental climate. This means it experiences cold winters and warm summers. The proximity to the ocean moderates extreme temperatures, influencing local weather patterns.

The Northeast Regional Climate Center (NRCC) also reports on climate conditions, confirming the seasonal fluctuations in temperature. They highlight factors such as ocean currents, prevailing winds, and geographical features that impact climate.

Factors contributing to temperature variations in Cape Cod include latitude, ocean influence, and seasonal changes. These elements interact to create the region’s distinct climate.

According to NOAA, Cape Cod’s average high temperature can range from 37°F in January to 79°F in July. This data helps to understand historical trends and make future projections about climate conditions in the region.

Temperature variations affect local ecosystems, influencing species habitats and migratory patterns. They also impact tourism, agriculture, and beach activities, crucial to the local economy.

Health, particularly for vulnerable populations, can be influenced by temperature. Extreme heat may pose risks, while cold can lead to hypothermia or other health issues in winter months.

For instance, high summer temperatures may lead to increased beach attendance, boosting local businesses. Conversely, winter cold can cause decreased visitation and increased heating costs for residents.

To address temperature-related challenges, experts recommend enhancing climate resilience and adaptive measures. Protecting coastal ecosystems and investing in infrastructure can mitigate potential negative impacts.

Strategies include promoting energy-efficient technologies, incentivizing renewable energy use, and investing in community cooling centers to combat heat effects. These measures can enhance the overall sustainability of Cape Cod.

What is the Average Low Temperature in Cape Cod Each Month?

The average low temperature in Cape Cod refers to the typical minimum temperature recorded each month. This metric helps residents and visitors understand winter and seasonal weather patterns in the region.

According to the National Oceanic and Atmospheric Administration (NOAA), average low temperatures are determined based on historical weather data, which provides a reliable reference for daily weather conditions.

Cape Cod experiences a variety of weather conditions influenced by maritime air masses. The average low temperatures can significantly impact outdoor activities, tourism, and local agriculture. Winter months tend to have the lowest averages, while summer months experience milder nights.

The Weather Channel also defines average low temperatures as crucial for planning activities and making informed decisions about clothing and heating needs. Understanding these temperatures helps in preparing for seasonal weather conditions.

Seasonal temperature variations arise from geographical location, ocean currents, and specific climatic patterns. Cape Cod’s coastal position results in unique weather influenced by the Atlantic Ocean.

Data from NOAA indicates that the average low temperatures in Cape Cod range from approximately 25°F (-4°C) in January to about 65°F (18°C) in July. This variation illustrates the effects of seasonal shifts on low temperatures.

Such fluctuations can impact local ecosystems, agriculture, and energy consumption due to heating and cooling needs. Awareness of these changes is crucial for community planning.

Health impacts include the risk of hypothermia during cold months and heat stress in warmer conditions. Environmental effects may lead to altered plant growth cycles and wildlife behavior.

For managing temperature-related challenges, experts recommend energy-efficient heating systems, proper insulation, and awareness of weather conditions. These measures ensure comfort and adaptability to seasonal temperatures.

Implementing strategies like community programs for weather preparedness can also help residents cope with temperature extremes effectively.

How Do Seasonal Changes Affect Temperatures in Cape Cod?

Seasonal changes significantly affect temperatures in Cape Cod by producing distinct weather patterns and temperature fluctuations throughout the year. The region experiences warm summers, mild autumns, cold winters, and cool springs, which are influenced by factors like ocean currents, geography, and atmospheric conditions.

Warm summers: Cape Cod summers typically last from June to August. Average high temperatures during this period range from 75°F to 85°F. Warm ocean currents contribute to these temperatures. According to the National Weather Service (2022), summer heatwaves can occasionally push temperatures above 90°F, but the coastal breezes help moderate extremes.
Mild autumns: Autumn months, from September to November, gradually cool down. High temperatures in September can reach around 70°F, dropping to about 50°F by November. The changing colors of the foliage add beauty to this time. A study by the United States Forest Service found that these seasonal shifts can affect local ecosystems and wildlife behavior.
Cold winters: Winter in Cape Cod lasts from December to February. Average temperatures can drop to around 25°F to 40°F. Arctic air masses influence winter weather, and snowfall can occur, albeit typically lighter than inland areas. The Cape Cod Regional Council of Governments reported that annual snowfall averages between 25 and 50 inches, impacting local communities and infrastructure.
Cool springs: Spring, spanning March to May, sees a gradual warming trend. March’s highs often hover around 45°F, increasing to about 65°F in May. The melting snow and blooming flora invigorate the region. The Cape Cod Chamber of Commerce highlights that spring weather promotes tourism, attracting visitors interested in enjoying outdoor activities.

Seasonal changes in Cape Cod create a diverse climate, affecting local ecosystems, agriculture, and tourism. Understanding these patterns is essential for residents and visitors alike.

What Are the Weather Conditions in Cape Cod Throughout the Year?

Cape Cod experiences varied weather conditions throughout the year, ranging from cold winters to warm summers. The climate is influenced by its coastal location, which brings distinct seasonal changes.

Winter (December to February)
Spring (March to May)
Summer (June to August)
Fall (September to November)

The seasonal shifts in Cape Cod’s weather provide diverse experiences for residents and visitors. While many enjoy the summer warmth, others appreciate the tranquility of off-peak seasons.

Winter (December to February):
Winter in Cape Cod is characterized by cold temperatures, often ranging from 20°F (-6°C) to 40°F (4°C). Snowfall is common. The region can experience nor’easters, which result in significant snow and strong winds, leading to travel disruptions.
Spring (March to May):
Spring brings a gradual warming trend. Average temperatures range from 30°F (-1°C) to 65°F (18°C). This season is marked by blooming flowers and increased rainfall. The weather can be unpredictable, with warm and cold days occurring close together.
Summer (June to August):
Summer is warm and sunny, with temperatures averaging between 60°F (16°C) and 80°F (27°C). Coastal breezes provide relief from the heat. The summer season attracts many tourists, resulting in busy beaches and vibrant community events.
Fall (September to November):
Fall features cooler temperatures, ranging from 40°F (4°C) to 70°F (21°C). The foliage changes color, attracting visitors for leaf-peeping. Weather can be variable, with warm days and cool nights. Hurricane season can also affect fall weather patterns, prompting caution.

Cape Cod’s weather conditions influence tourism and local activities, shaping the lifestyle of its residents throughout the year. Each season offers unique opportunities and challenges.

How Does Precipitation Impact Cape Cod’s Monthly Temperatures?

Precipitation significantly impacts Cape Cod’s monthly temperatures. When precipitation occurs, the air becomes cooler due to the release of heat during rain and the evaporation process. This cooling effect can lower daytime temperatures in the short term. On the other hand, long periods of wet weather can lead to increased humidity. Higher humidity raises nighttime temperatures, preventing them from dropping as low as they might otherwise.

In summer months, heavy rain can provide temporary relief from heat, leading to cooler days. Conversely, in winter, snow can insulate the ground and create warmer surface temperatures. However, excessive snow can also lead to lower temperatures if cold air settles after the storms.

Overall, Cape Cod’s temperature patterns are closely tied to precipitation levels. The interaction between rain, snow, and humidity shapes the overall monthly climate. Understanding this relationship helps in predicting seasonal temperature variations throughout the year.

What Are the Patterns of Humidity and Wind in Cape Cod by Month?

The patterns of humidity and wind in Cape Cod vary throughout the year, influenced by seasonal changes and local geography.

January: High humidity with average wind speeds.
February: Cold temperatures and strong winds.
March: Transition to milder humidity with increasing winds.
April: Moderate humidity and fluctuating wind patterns.
May: Warmer temperatures and reduced humidity.
June: Increased humidity with warm winds.
July: Peak humidity and steady warm winds.
August: High humidity persists with occasional storms.
September: Decreasing humidity with cooler winds.
October: Crisp air and lower humidity levels.
November: Cold temperatures and increasing wind speeds.
December: High humidity returns with strong winds.

These variations in wind and humidity reflect the seasonal shifts in weather patterns and can impact outdoor activities, tourism, and local ecosystems.

January:
January typically experiences high humidity levels averaging around 80%. Winds average 10-15 mph, which can feel chillier due to the low temperatures. According to the NOAA, winter storms can briefly raise humidity levels further but usually bring strong coastal winds.
February:
In February, Cape Cod’s temperatures remain low, often leading to frosty mornings. Strong winds can exceed 20 mph, accompanied by humidity levels near 75%. The harsh conditions can deter outdoor activities but often favor winter sports enthusiasts.
March:
March sees a notable transition as temperatures start to rise. Humidity levels decrease to around 70% while wind speeds pick up, often ranging from 15 to 20 mph. This change can lead to early spring conditions, attracting more visitors and outdoor activities.
April:
April generally has moderate humidity, averaging around 60%. Winds start to stabilize at 10-15 mph. Rain showers become more common, but occasional sunny days help to create a mix of weather, appealing to tourists.
May:
May brings warmer temperatures and lower humidity levels, averaging around 55%. Winds average around 10 mph. This month marks the beginning of the tourist season as outdoor activities flourish with favorable weather conditions.
June:
In June, humidity increases to approximately 65% as temperatures rise. Winds remain steady, averaging 10-15 mph. This is a popular month for beachgoers enjoying the warmer weather, which draws more visitors to Cape Cod’s shores.
July:
July is characterized by peak humidity, averaging 70%, with warm winds often cited as pleasant. Wind speeds are typically 10-12 mph. The summer heat can lead to potential thunderstorms, providing a dynamic atmosphere for outdoor enthusiasts.
August:
August continues the trend of high humidity, often similar to July. Wind speeds remain steady, promoting a warm coastal climate. However, this month can also bring tropical storms from the ocean, affecting local weather patterns.
September:
September sees a decline in humidity, averaging about 60%. Winds increase as summer fades, averaging 15 mph. This month offers pleasant weather, often attracting tourists looking to escape the summer heat.
October:
October is marked by cool, crisp air with lower humidity, approximately 55%. Winds average 10-15 mph, creating vibrant foliage conditions. Many locals and tourists appreciate this month’s changing scenery.
November:
In November, temperatures drop, and humidity rises again to 65%. Winds begin to pick up speed, reaching an average of 15 mph. This month often signifies the approach of winter, with windy, colder days.
December:
December ushers back high humidity levels, around 75%, alongside strong winds often exceeding 15 mph. The cold temperatures signal the onset of winter, impacting wildlife and tourism patterns in Cape Cod.

Understanding these monthly variations can help residents and visitors plan activities around Cape Cod’s climate effectively.

What Months Have the Most Comfortable Weather Conditions in Cape Cod?

The months with the most comfortable weather conditions in Cape Cod are typically May, June, September, and October. These months feature mild temperatures and moderate humidity, making them ideal for outdoor activities.

Month	Average High (°F)	Average Low (°F)	Average Precipitation (inches)	Average Humidity (%)
May	68	50	3.5	70
June	75	58	3.0	65
September	72	59	4.0	70
October	63	48	3.5	75

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